212110222101 has 4 divisors (see below), whose sum is σ = 282813629472. Its totient is φ = 141406814732.

The previous prime is 212110222069. The next prime is 212110222151. The reversal of 212110222101 is 101222011212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212110222101 - 2⁵ = 212110222069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212110222151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35351703681 + ... + 35351703686.

It is an arithmetic number, because the mean of its divisors is an integer number (70703407368).

Almost surely, 2^212110222101 is an apocalyptic number.

It is an amenable number.

212110222101 is a deficient number, since it is larger than the sum of its proper divisors (70703407371).

212110222101 is an equidigital number, since it uses as much as digits as its factorization.

212110222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70703407370.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212110222101 its reverse (101222011212), we get a palindrome (313332233313).

The spelling of 212110222101 in words is "two hundred twelve billion, one hundred ten million, two hundred twenty-two thousand, one hundred one".